Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations cowski on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Recent content by Naeema

  1. Naeema

    How much does starch contibute to COD

    Thank you so much!!!
  2. Naeema

    How much does starch contibute to COD

    Hi Can anyone tell me how much 1 kg of starch will contibute to COD, or suggest a method of estimating it. We are using unmodified corn starch and tapioca starch. Thanks!!
  3. Naeema

    Use of enzymes to treat a wastewater stream conatining starch

    HI bimr I will recommend that as an option. Would the remaining solid product have any use? or will it have to be disposed of?
  4. Naeema

    Use of enzymes to treat a wastewater stream conatining starch

    Hi If I did use starch degrading enzymes to treat the water the likely products will be simple sugars such maltose, glucose etc. Do these sugars contribute significantly to COD? Will the water be suitable for disposal? Thanks
  5. Naeema

    Use of enzymes to treat a wastewater stream conatining starch

    Hi We use corn starch for the surface and tapioca starch for the wet end. The flow rate is aproximately 50 m3/day nad the composition is ~95% water and 5% starch. Thanks
  6. Naeema

    Use of enzymes to treat a wastewater stream conatining starch

    Hi all In an attempt to improve effluent management my company has segregated their problematic waste streams. One of these is a stream largely consisting of starch and water. The company does not want to invest in a biological treatment plant. Does anyone have any advice on the aplication of...
  7. Naeema

    Use of enzymes to treat a wastewater stream conatining starch

    Hi all In an attempt to improve effluent management my company has segregated their problematic waste streams. One of these is a stream largely consisting of starch and water. The company does not want to invest in a biological treatment plant. Does anyone have any advice on the aplication of...
  8. Naeema

    Use of enzymes to treat a wastewater stream conatining starch

    Hi all In an attempt to improve effluent management my company has segregated their problematic waste streams. One of these is a stream largely consisting of starch and water. The company does not want to invest in a biological treatment plant. Does anyone have any advice on the aplication of...
  9. Naeema

    Reducing COD in paper mill effluent

    Hi I am not certain of the temperature at this stage. An analysis I have been given of the most problematic stream is as follows: COD: 8000 kg/day % solids: 10000 kg/day Sulphates: 800 kg/day Nitrates: 11 kg/day Sulphides: 29 kg/day pH: 7.5 Conductivity: 900 us/cm What are possible treatment...
  10. Naeema

    Controlling the amount of starch entering the drains in a paper mill

    Hi I just started work in a paper mill that produces business paper as well as newsprint from recycled fibre. I have been assigned to research methods to reduce COD levels. Testing on effluent lines has concluded that the starch is the highest contributor to the COD levels, especially the...
  11. Naeema

    Reducing COD in paper mill effluent

    Hi I just started work in a paper mill that produces business paper as well as newsprint from recycled fibre. I have been assigned to research methods to reduce COD levels. Testing on effluent lines has concluded that the starch is the highest contributor to the COD levels, especially the...

Part and Inventory Search